Kooks 2181HY30 Tri-Y Headers w/ Ultra GREEN Cats – C8 Corvette Z06

The Kooks 2181HY30 Stainless Steel Tri-Y Header and Ultra GREEN Catalytic Converter Kit is engineered specifically for the 2022+ Chevrolet Corvette C8 Z06 equipped with the 5.5L LT6 flat-plane crank V8. Featuring a stepped Tri-Y header design, this system is optimized to improve exhaust scavenging, throttle response, and mid-range torque while maintaining excellent top-end performance.

Constructed from premium 304 stainless steel, these headers feature an oval port design and utilize the factory bolt pattern for a precise, leak-free installation. The included Ultra GREEN high-flow catalytic connection pipes bolt directly to the OEM exhaust using flanged outlets, requiring no additional parts or fabrication. Designed as a complete bolt-on solution, the Kooks 2181HY30 delivers race-proven performance with street-driven refinement for the C8 Z06 platform.

Key Features

• Stepped Tri-Y header design for improved exhaust scavenging

• 1-7/8″ to 2″ primary tube configuration

• Includes Kooks Ultra GREEN high-flow catalytic connection pipes

• Direct bolt-on installation with OEM exhaust compatibility

• No additional parts or fabrication required

• Designed specifically for the C8 Corvette Z06 (LT6 engine)

Technical Specs

• Header Type: Stepped Tri-Y

• Primary Tube Diameter: 1.875 in. → 2.000 in.

• Material: 304 Stainless Steel

• Port Shape: Oval

• Catalysts Included: Ultra GREEN High-Flow Cats

• Connection Type: Flanged outlet to OEM exhaust

• Bolt Pattern: Stock/OEM

• Finish: Natural Stainless

Vehicle Fitment

• 2023–2025 Chevrolet Corvette Z06

  • Engine: 5.5L LT6 V8